diff --git a/docs/api/packages/random.md b/docs/api/packages/random.md
index 546ef9e..3137ee1 100644
--- a/docs/api/packages/random.md
+++ b/docs/api/packages/random.md
@@ -223,7 +223,7 @@ func main() {
 
 ### <span id="RandSymbolChar">RandSymbolChar</span>
 
-<p>生成给定长度的随机符号字符串. 符号字符包括: !@#$%^&*()_+-=[]{}|;':\",./<>?。</p>
+<p>生成给定长度的随机符号字符串。</p>
 
 <b>函数签名:</b>
 
@@ -231,7 +231,7 @@ func main() {
 func RandSymbolChar(length int) string
 ```
 
-<b>示例:<span style="float:right;display:inline-block;">[Run](https://go.dev/play/p/Im6ZJxAykOm)</span></b>
+<b>示例:<span style="float:right;display:inline-block;">[运行](https://go.dev/play/p/Im6ZJxAykOm)</span></b>
 
 ```go
 package main
@@ -338,7 +338,7 @@ func main() {
 func RandFloats(n int, min, max float64, precision int) []float64
 ```
 
-<b>实例:<span style="float:right;display:inline-block;">[Run](https://go.dev/play/p/I3yndUQ-rhh)</span></b>
+<b>实例:<span style="float:right;display:inline-block;">[运行](https://go.dev/play/p/I3yndUQ-rhh)</span></b>
 
 ```go
 package main
diff --git a/docs/en/api/packages/random.md b/docs/en/api/packages/random.md
index 443237b..70397ce 100644
--- a/docs/en/api/packages/random.md
+++ b/docs/en/api/packages/random.md
@@ -223,7 +223,7 @@ func main() {
 
 ### <span id="RandSymbolChar">RandSymbolChar</span>
 
-<p>Generate a random symbol char of specified length. Symbol chars: !@#$%^&*()_+-=[]{}|;':\",./<>?.</p>
+<p>Generate a random symbol char of specified length.</p>
 
 <b>Signature:</b>
 
diff --git a/fileutil/file_test.go b/fileutil/file_test.go
index 44d9784..fde1f63 100644
--- a/fileutil/file_test.go
+++ b/fileutil/file_test.go
@@ -27,7 +27,7 @@ func TestCreateFile(t *testing.T) {
 
 	assert := internal.NewAssert(t, "TestCreateFile")
 
-	f := "./text.txt"
+	f := "./testdata/text.txt"
 	if CreateFile(f) {
 		file, err := os.Open(f)
 		assert.IsNil(err)
diff --git a/xerror/xerror_test.go b/xerror/xerror_test.go
index 3aa1233..c14714e 100644
--- a/xerror/xerror_test.go
+++ b/xerror/xerror_test.go
@@ -14,12 +14,6 @@ func TestTryUnwrap(t *testing.T) {
 
 	assert := internal.NewAssert(t, "TestTryUnwrap")
 	assert.Equal(42, TryUnwrap(strconv.Atoi("42")))
-}
-
-func TestTryUnwrapFail(t *testing.T) {
-	t.Parallel()
-
-	assert := internal.NewAssert(t, "TestTryUnwrapFail")
 
 	_, err := strconv.Atoi("4o2")
 	defer func() {
@@ -76,8 +70,6 @@ func TestXError_Unwrap(t *testing.T) {
 }
 
 func TestXError_StackTrace(t *testing.T) {
-	// t.Parallel()
-
 	assert := internal.NewAssert(t, "TestXError_StackTrace")
 
 	err := New("error")
@@ -86,7 +78,7 @@ func TestXError_StackTrace(t *testing.T) {
 
 	assert.Equal(3, len(stacks))
 	assert.Equal("github.com/duke-git/lancet/v2/xerror.TestXError_StackTrace", stacks[0].Func)
-	assert.Equal(83, stacks[0].Line)
+	assert.Equal(75, stacks[0].Line)
 	assert.Equal(true, strings.Contains(stacks[0].File, "xerror_test.go"))
 }